自己写的一个分解质因数的小程序，输入一个大于3的整数，然后输出分解的结果。使用了long long型变量，19位10进制的数字基本够用了。此外，根据输出结果很容易能判断是不是质数。-To write a prime factor decomposition of a small program, enter an integer greater than 3, and then outputs the results of the decomposition. Use a long long variable, 19 decimal digit basic enough. Moreover, according to the output can easily judge is not a prime number.